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Magneto-Optical Kerr Effect of Compositionally Modulated Co/Pt Films |
ZHOU Shiming;ZHAI Hongru;SONG Jingtao*;ZHANG Hongyan;LU Mu;JIANG Shulian
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Center of Materials Analysis, Laboratory of Solid State
Microstructures, Nanjing University, Nanjing 210008
*Water conservancy and Electric Power Equipment Factory, Wujiang 215200
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Cite this article: |
ZHOU Shiming, ZHAI Hongru, SONG Jingtao et al 1992 Chin. Phys. Lett. 9 379-382 |
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Abstract In this paper the magneto-optical polar Kerr rotation spectra of compositionally modulated films (CMF) Co/Pt are calculated by using Fresnel's equations. For CMF Co/Pt with dCo/dpt=1/2, 1 and 2 the magneto-optical Kerr rotation at any wavelength increases with the increasing modulation wavelength in the wavelength region from 200 to 800nm. For CMF Co/Pt of constant dpt the Kerr rotation increases with dco increasing while of constant dco the Kerr rotation increases with dpt decreasing. From numerical calculations it is suggested that for CMF Co/Pt with small dpt the Pt sublayer is polarized and has a positive contribution to the Kerr rotation of CMF Co/Pt.
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Keywords:
78.20.Ls
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Published: 01 July 1992
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PACS: |
78.20.Ls
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(Magneto-optical effects)
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